NPPES file of Aug 9, 2026

Cory Michael Markham, MD

Critical Care Medicine (Internal Medicine) Physician · Shreveport, LA

Cory Michael Markham, MD is a critical care medicine (internal medicine) physician with a practice address in Shreveport, Louisiana, and NPI 1861889933, issued on Apr 16, 2015. Check the license (Louisiana 308719, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861889933
Name
Cory Michael Markham
Credential
MD
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
308719 LA
Self-reported in NPPES; status is on the state search
Practice location
2551 Greenwood RD Ste 210, Shreveport, LA 71103
Phone
(318) 635-0834
Enumerated
Apr 16, 2015
Record last updated
Jul 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(318) 636-2331
Medicare enrollment
Enrolled (PECOS I20181115002056); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2551 Greenwood RD Ste 210

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ashley Addy, NPAcute Care Nurse Practitioner1487221149
  2. Calvin Alexander, M.D.Critical Care Medicine (Internal Medicine) Physician1780689224
  3. Loren Carscadden, APRNAcute Care Nurse Practitioner1306510359
  4. Felicia Croft, ACNPC-AGAcute Care Nurse Practitioner1316785215
  5. Ramee DickersonFamily Nurse Practitioner1841674074
  6. Laura DicksonAcute Care Nurse Practitioner1538037163

Verify Cory Michael Markham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license 308719
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Louisiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $759.01

24 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cory Markham$759.01
  2. Specialty average$2,958.68

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. WK North Pulmonary And Critical CareShreveport, LA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cory Michael Markham among 62 critical care medicine (internal medicine) physician records in Louisiana

Cory Michael Markham, MD is one of 62 critical care medicine (internal medicine) physician records with a practice address in Louisiana. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 19% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 89% of these records are
  • Graduated2015 · median 2010 among the 55 with a school on file
  • Record last updated2021 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Louisiana

There are 62 critical care medicine (internal medicine) physician records in Louisiana.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Calvin Alexander, M.D.Shreveport, LA 711031780689224
  2. Steven Conrad, M.D.Shreveport, LA 711031124048004
  3. Taylor Conrad, M.D.Shreveport, LA 711031205290830
  4. Aiyasawmy Dorairajan, MDShreveport, LA 711031194144535
  5. Laurie Grier, M.D.Shreveport, LA 711031679595011
  6. Judy Locati, M.D.Shreveport, LA 711031932465358
  7. Louie Scott, M.D.Shreveport, LA 711031215953021
  8. Christopher Trosclair, MDShreveport, LA 711031992236202

Common questions

What is Cory Michael Markham, MD's NPI number?

Cory Michael Markham, MD's National Provider Identifier (NPI) is 1861889933, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Cory Michael Markham, MD located?

The NPPES record lists a practice address at 2551 Greenwood RD Ste 210, Shreveport, LA, 71103. Phone: (318) 635-0834. Providers update this record themselves, so call before visiting.

How can I verify Cory Michael Markham, MD's license?

NPPES lists Louisiana license number 308719, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.